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Revert 97324. Chris says this cleanup could hurt -E performance. 

llvm-svn: 97331
This commit is contained in:
Benjamin Kramer 2010-02-27 18:02:51 +00:00
parent a197fb6731
commit 718f722271
1 changed files with 23 additions and 7 deletions
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30
clang/lib/Frontend/PrintPreprocessedOutput.cpp
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@ -390,7 +390,7 @@ struct UnknownPragmaHandler : public PragmaHandler {
static void PrintPreprocessedTokens(Preprocessor &PP, Token &Tok,
PrintPPOutputPPCallbacks *Callbacks,
llvm::raw_ostream &OS) {
llvm::SmallString<256> Buffer;
char Buffer[256];
Token PrevTok;
while (1) {
@ -406,13 +406,29 @@ static void PrintPreprocessedTokens(Preprocessor &PP, Token &Tok,
OS << ' ';
}
llvm::StringRef Str = PP.getSpelling(Tok, Buffer);
OS << Str;
// Tokens that can contain embedded newlines need to adjust our current
// line number.
if (Tok.getKind() == tok::comment)
Callbacks->HandleNewlinesInToken(Str.data(), Str.size());
if (IdentifierInfo *II = Tok.getIdentifierInfo()) {
OS << II->getName();
} else if (Tok.isLiteral() && !Tok.needsCleaning() &&
Tok.getLiteralData()) {
OS.write(Tok.getLiteralData(), Tok.getLength());
} else if (Tok.getLength() < 256) {
const char *TokPtr = Buffer;
unsigned Len = PP.getSpelling(Tok, TokPtr);
OS.write(TokPtr, Len);
// Tokens that can contain embedded newlines need to adjust our current
// line number.
if (Tok.getKind() == tok::comment)
Callbacks->HandleNewlinesInToken(TokPtr, Len);
} else {
std::string S = PP.getSpelling(Tok);
OS.write(&S[0], S.size());
// Tokens that can contain embedded newlines need to adjust our current
// line number.
if (Tok.getKind() == tok::comment)
Callbacks->HandleNewlinesInToken(&S[0], S.size());
}
Callbacks->SetEmittedTokensOnThisLine();
if (Tok.is(tok::eof)) break;